Theoretical Study on the Mechanism and Kinetics for the Self-Reaction of C2H5O2 Radicals

2012 ◽  
Vol 116 (18) ◽  
pp. 4610-4620 ◽  
Author(s):  
Pei Zhang ◽  
Wenliang Wang ◽  
Tianlei Zhang ◽  
Long Chen ◽  
Yongmei Du ◽  
...  
2018 ◽  
Vol 15 (147) ◽  
pp. 20180377
Author(s):  
Jianing Wu ◽  
Yichao Zhao ◽  
Yunshu Zhang ◽  
David Shumate ◽  
Stephanie Braccini Slade ◽  
...  

Wild African elephants are voracious eaters, consuming 180 g of food per minute. One of their methods for eating at this speed is to sweep food into a pile and then pick it up. In this combined experimental and theoretical study, we elucidate the elephant’s unique method of picking up a pile of food by compressing it with its trunk. To grab the smallest food items, the elephant forms a joint in its trunk, creating a pillar up to 11 cm tall that it uses to push down on food. Using a force sensor, we show the elephant applies greater force to smaller food pieces, in a manner that is required to solidify the particles into a lump solid, as calculated by Weibullian statistics. Elephants increase the height of the pillar with the force required, achieving up to 28% of the applied force using the self-weight of the pillar alone. This work shows that elephants are capable of modulating the force they apply to granular materials, taking advantage of their transition from fluid to solid. In the future, heavy robotic manipulators may also form joints to compress and lift objects together.


Author(s):  
Tatyana Petrovna Opekina ◽  
Natalya Sergeevna Shipova

This article presents the results of a theoretical study of self-realisation, self-actualisation and self-efficacy phenomena. The main aspects of understanding and correlating these phenomena in classical and modern Russian and foreign psychology are described. The highlighted concepts related to the phenomenon of self-realisation, both in the field of psychology and pedagogy. The similarities and differences of the self-realisation, self-actualisation, self-efficacy phenomena, as well as their correlation and comparison are presented. A comparative analysis of the studied concepts is given. According to the results of the theoretical analysis, the processes of self-realisation and self-actualisation are based on the inner motivation of a person to grow, develop personality, realise its potential. Both of these processes, due to their subjectivity, are difficult to observe and measure from the outside. We have highlighted the main differences, consisting in a greater awareness and orderliness of the process of self-realisation, as well as its predominantly "social" orientation, while self-actualisation is often associated with the struggle with external forces, the desire for self-realisation is rather approved and supported by the society. The concepts of self-realisation and self-efficacy are united by their inherent representation in the external plane of the life of the individual, as well as awareness, activity, goal-setting, and an orientation towards achieving success. In contrast to self-efficacy, self-release is a process rather than a sustainable phenomenon, and can be expressed both externally and internally through a connection with the value-semantic, motivational spheres of the individual.


2018 ◽  
Vol 25 (8) ◽  
pp. 082310 ◽  
Author(s):  
N. Sepehri Javan ◽  
R. Naderali ◽  
M. Hosseinpour Azad ◽  
M. N. Najafi

ChemPhysChem ◽  
2006 ◽  
Vol 7 (8) ◽  
pp. 1786-1794 ◽  
Author(s):  
Haitao Ma ◽  
Xiaojun Liu ◽  
Wensheng Bian ◽  
Lingpeng Meng ◽  
Shijun Zheng

Langmuir ◽  
2008 ◽  
Vol 24 (17) ◽  
pp. 9566-9574 ◽  
Author(s):  
Mathieu Linares ◽  
Patrizia Iavicoli ◽  
Krystallia Psychogyiopoulou ◽  
David Beljonne ◽  
Steven De Feyter ◽  
...  

2013 ◽  
Vol 25 (1) ◽  
pp. 285-291 ◽  
Author(s):  
Jing Li ◽  
Dandan Han ◽  
Haijie Cao ◽  
Mingyue Li ◽  
Maoxia He

2011 ◽  
Vol 55 (2) ◽  
pp. 270-276 ◽  
Author(s):  
PengZhen Wu ◽  
Jian Li ◽  
ShuJin Li ◽  
Fu-Ming Tao

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